Charlie Duke’s Passport: Apollo 16 Moonwalker
Moonwalker Charlie Duke: An Astronaut’s Passport From a Fellow Collector’s Archive
“We copy you on the ground… you got a bunch of guys about to turn blue. We’re breathing again.” That line, delivered in a flat Texas drawl as the Eagle touched down in the Sea of Tranquility, belongs to Charlie Duke. He wasn’t on the Moon that day. He was in Houston, working CAPCOM for Apollo 11. Three years later, he’d make his own trip.
The document I’m featuring today isn’t from my own holdings. It comes from a fellow collector, Bill (known to space memorabilia circles as BostonBill), who was kind enough to share this passport issued to NASA astronaut and Apollo 16 moonwalker Charlie Duke. Congratulations on landing this one, Bill. Astronaut passports rarely surface in the collecting world, and one tied to a man who actually walked on the Moon is a genuine rarity.
Who Was Charlie Duke Before Apollo 16?
Charles M. Duke Jr. became the tenth person to walk on the Moon, selected as part of NASA’s fifth astronaut class in 1966 after training as an Air Force fighter pilot and test pilot. Before he ever flew, Duke had already made his mark on space history behind a microphone. As CAPCOM during Apollo 11 in July 1969, his was the voice relaying Mission Control’s relief the instant Armstrong and Aldrin set the Lunar Module down. He’d earn his own seat on a spacecraft less than three years later.
Ten Days on the Descartes Highlands
Duke’s own lunar landing came on Apollo 16 in April 1972, when he served as Lunar Module Pilot alongside Commander John Young. The two spent roughly 71 hours on the lunar surface, conducting three moonwalks in the Descartes Highlands and gathering nearly 96 kilograms of geological samples, including Big Muley, the largest rock returned by any Apollo mission. Command Module Pilot Ken Mattingly held down orbit above them in the CSM Casper.
A Subsatellite, Not a Satellite on a String
Before heading home, the Apollo 16 crew released the Particles and Fields subsatellite from the Service Module into lunar orbit, a compact science package designed to study the Moon’s magnetic and radiation environment. It’s sometimes described loosely as a “tethered” experiment, but the actual tethered work on this mission belonged to Mattingly, who made a spacewalk during the return trip to retrieve film canisters from the Scientific Instrument Module bay. Worth keeping the two straight if you’re cataloguing mission details for a collection like this one. NASA’s official Apollo 16 mission summary lays out the sequence in full.
The Measles That Nearly Grounded a Different Mission
Duke has a strange footnote in Apollo history that has nothing to do with his own flight. While training as backup Lunar Module Pilot for Apollo 13, he contracted German measles from one of his children and unknowingly exposed the prime crew. Ken Mattingly, who had no childhood immunity, was pulled from the mission days before launch and replaced by Jack Swigert, a decision that turned out to matter enormously once the mission’s oxygen tank failed en route to the Moon.
From Brigadier General to Lay Minister
Duke retired from NASA in 1975 as a Brigadier General in the U.S. Air Force Reserve, later serving as director of the Kennedy Space Center and founding Duke Investments. He’s a Fellow of the American Astronautical Society and a member of the U.S. Astronaut Hall of Fame. He also became a committed Christian and lay minister, spending years visiting prison inmates.
One of Four
As of this year, Duke is one of only four surviving Apollo moonwalkers, alongside Buzz Aldrin (Apollo 11, 1930), Dave Scott (Apollo 15, 1932), and Jack Schmitt (Apollo 17, 1935). Twelve men walked on the Moon between 1969 and 1972. That number will only shrink from here, which is part of why a document like this, tying an ordinary travel record to an extraordinary career, holds the kind of significance that goes well beyond its paper and ink.
That means 8 of the 12 moonwalkers have died. The last person to leave footprints on the Moon was Gene Cernan (Apollo 17), who died in 2017. I am fortunate to hold the passport of a moonwalker – JOHN YOUNG.
If you’re chasing astronaut-related travel documents yourself, a rundown of the twelve moonwalkers is worth a read for context on how rare this club has become.
Tom Topol | Passport Historian & Author
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